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sbcl Log

0.8.17.31: "dlerror and a tale of woe"
Fix two bugs relating to dlerror() in the OS X dl* shim:
* dlerror() should return NULL when there is no error
* dlerror() should return an error when dlsym() returns NULL
Also, fix a call to cerror with only one argument.

Restores support for OS X 10.2 "Jaguar":
* Use a header file with constants for the dl* shim instead of the
OS dlfcn.h, which doesn't exist under 10.2 and does under 10.3
* Include a fake nl_langinfo which returns a codeset of UTF-8 unless
neither LC_CALL or LANG are set to C. OS X uses UTF-8 everywhere, so
this is arguably the right behavior.

0.8.17.24:
Reinstate fixnum arithmetic when possible by defining modular
arithmetic mechanisms for (UNSIGNED-BYTE 29)
... this feels like a big, ugly hack, since the compiler is
(presumably) smart enough to do this when modular
arithmetic was not present;
... move some EVAL-WHEN macros into a MACROLET while we're at it;
... builds and passes tests on x86/Linux; will probably build
properly on other platforms, but will fail tests in
(at least) tests/arith.pure. These test failures seem
harmless enough and will be fixed in another revision or
two.

0.8.17.22: minor buglets & bugreports
* Use %COERCE-NAME-TO-FUN, not FDEFINITION for
evaluation of FUNCTION.
* (SETF MACRO-DEFINITION) must accept NIL environments
(reported by Kalle Olavi Niemitalo)
* Also record a bunch of PCL/MOP bugs reported
by Bruno Haible. Note: there are still more bugs
reported by him on the mailing list.

0.8.17.19: Late resolution for foreign symbols &co
* If a foreign symbol is unknown, use an address on a
protected page for it: all accesses there are trapped,
and signal UNDEFINED-ALIEN-ERROR. (Currently the error
doesn't reveal the name of the alien that was
accessed.)
* Make GET-DYNAMIC-FOREIGN-SYMBOL-ADDRESS keep track of
both undefined aliens and dynamic foreign symbols in
general.
* Fix linkage-table reinitialization bug on threaded
platforms, reported by Sean Ross.
* Better restarts for realoding shared objects, and
CONTINUE restarts for *save-hooks* and *init-hooks*.
* Accurate alien warning for SAVE-LISP-AND-DIE on
non-linkage-table platforms.

0.8.17.18:
Fix for a couple of Unicode-related bugs.
... KLUDGE around the non-existence of proper external-format
support in GET-DESCRIPTOR-FOR / RUN-PROGRAM;
... hideous hack in asdf-install to allow downloads of binary data
through character streams.

0.8.17.17:
Fix (UPGRADED-COMPLEX-PART-TYPE NIL) to return NIL
... fortunately we don't actually have to implement the
(COMPLEX NIL) type, unlike with arrays; one cannot create
a COMPLEX independent of its elements.

0.8.17.8: x86 backtraces
* fixed bug #345: don't set the escaped flag to NIL on x86
in COMPUTE-CALLING FRAME if we have no code from
FIND-ESCAPED-FRAME. Add tag-bytes to undefined_tramp and
closure_tramp on x86 like others.
* partial fix for #61: instead of throwing no-debug-info
conditions, return a "no debug information for frame"
bogus-debug-fun from debug-fun-from-pc.
* Two new BUGS entries about backtraces.
* Tests. (debug.impure.lisp now passes on sparc as well,
but only because one test now axxepts the XEP in lieu of
the function on sparc and x86.